On 4/17/2024 2:41 PM, Oliver Smith-Denny wrote:
Now, for the case of ARM64, where you have 64k runtime granularity and often will end up with the case of many extra pages in a code section, those pages will be marked as RO and executable, even though they contain garbage. I think it would be worthwhile to mark the excess garbage pages, if they exist for a given section, as RP. Nothing should be using them in any fashion, they are padding.
I thought this through some more. We can't do this because of the UEFI spec provision that says no 64k region can have different attributes set. So, we leave open the possibility of executing garbage :) Oliver -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#117936): https://edk2.groups.io/g/devel/message/117936 Mute This Topic: https://groups.io/mt/105570114/21656 Group Owner: devel+ow...@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
